[jmg]

I'm lucky that we are very cool with our neighbors because I know that my M3 with an MPE is way too obnoxious during cold starts in the morning. Luckily I only bring it to work 2 times a week they don't have to hear it very often. Regardless of how loud our vehicles are, your neighbor seems mentally unstable. If he doesn't move away, I would move. There is nothing more uncomfortable than having to feel feel like you have to look over your shoulder in your very own home.